james



(N0 Model.) 2 Sheets-Sheet 1.

U. S. JAMES.

HOISTING DRUM.

No. 595,308. Patented Dec. 14,1897.

M Attorney! {No Model.) 2 Sl1eets-Sheet 2. U. S. JAMES.

HOISTING DRUM.

No. 595,308. Patented Dec. 14,1897.

I I II II Ilium...

ilivTTTn STATES PATENT OFFICE,

ULYSSES JAMES, OF HELENA, MONTANA, ASSIGNOR OF ONE-HALF TO LEVVIS II.GRAVES, OE SAME PLACE.

HOlSTlNG-DRUM.

SPECIFICATION forming part of Letters Patent No. 595,308, dated December14, 1897.

Application filed April 15, 1897. Serial No. 632,304. (No model.)

To ctZZ whom, it may concern.-

Be it known that I, ULYSSES S. J AMES, a citizen of the United States,residing at IIelena, in the county of Lewis and Clarke and State ofMontana, have invented certain new and useful Improvements in HoistingApparatus, of which the following is a specification, reference beinghad therein to the accompanying drawings.

Referring to the drawings, Figure 1 is a plan view, Fig. 2 a verticalsection, and Fig. 3 an end view, of my improved apparatus.

The design of my invention is to provide a strong and safe apparatusespecially for use in mining, as more fully hereinafter set forth.

lVithin a strong frame a is mounted the horizontal drum 1) of the usualor any improved construction. The vertical shaft 0 of the drum isjournaled in suitable bearings d d, secured to the framework, its lowerend being stepped in a bearing D carried by a pivoted lever 0., locatedunderneath the drum. The free end of this lever is pivotally connectedby a link f to an arm g, carried by a crank or rock shaft g, journaledhorizontally in the frame to one side of the drum. Connected to a crankon one end of this shaft is a suitable operating-rod 9 By these meansthe shaft, as will be observed, may be readily raised and loweredendwise, sliding freely through its two bearings d d.

The hub of the drum is a hollow casting h, substantially rectangular andhaving lateral flanges at its upper and lower corners to embrace thetransverse beams t' of the drum, to which beams the hollow hub or box issecurely fastened. Hollow trunnions 71 project, re spectively, from theupper and lower sides of the hollow box, the lower trunnion fittingaround the upwardly'projecting cylindrical part 7& of the lower bearingd and resting on the horizontal flange of said bearing, and the uppertrunnion being j ournaled in a bearing 7;, supported on the frame a,this trunnion loosely embracing the shaft 0. By these means the drum isfirmly supported concentrically with the shaft and allowed to rotatefreely independently thereof. Keyed rigidly to the shaft, within thehub-box, is the n1ovable part Z of the clutch, which engages the otherpart Z of the clutch, this latter part being formed on the bottom of thehub-box within the same.

The drum is provided on the upper edge of its rim with a circular seriesof ratchet-teeth m, and engaging these teeth is a pawl 'm, pivoted onthe adjacent part of the frame above the drum, the pawl being held inengagement with the ratchet-teeth by gravity. Depending from the freeend of the pawl is a pivoted trip-rod m whose lower end is provided witha stop hi adapted to be struck by the lever 6 when the latter is raised,thereby disengaging the pawl and leaving the drum free to rotate.bifurcated at its lower end to embrace the lever 6 and be guidedthereby.

The upper end of the shaft 0 is provided with the usual sweep-socket n,and the drum is provided with the usual band-brake 0, connected to andoperated by the usual lever 0. As shown in Figs. 2 and 3, the lever 6works in and is guided by a vertical loop 19, depending from the upperportion of the framework.

It will be observed that normally both the clutch and the pawl are inengagement, the latter serving, as usual, to prevent the drum unwinding.hen it is desired to release the drum, the operator simply raises levere, whereupon the shaft is raised and the movable part of the clutchdisengaged from the hub of the drum. Then as the lever e rises higher itstrikes the stop m and disengages the pawl on, holding the pawl out ofengagement until the lever is lowered. It will thus be seen that theshaft is released before the pawl is disengaged, whereby all backlashagainst the animal attached to the sweep is avoided.

The essential advantages of this hoisting apparatus lie in itscompactness and safety. These arise particularly from the peculiarconstruction of the hub and clutch. The hub is made hollow and entirelyincloses the clutch parts, the lower part of the clutch being anintegral part of the hub. This arrangement of the clutch devices bringsthem directly in line with the strain on the drum, this being of greatimportance when the drum is heavily loaded, as in that case the greatstrain has a tendency to twist and strain the shaft and would be liableto disengage the clutch if 10- The lower end of rod m is IOO cated aboveor below the drum. In my clutch there is practically no danger that theheavy straining of the shaft or of the drum will disengage the clutchparts or that the parts will be otherwise accidentally disengaged.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is- I 1. The combination of a frame, a drumjournaled therein and having its hub made hollow, an endwise-movableshaft journaled in the frame, means for adjusting said shaft endwise, atwo-part clutch inclosed within the hub, one part of the clutch beingattached to the hub and the other part carried by the shaft,substantially as described.

2. The combination of a frame, a vertical shaft journaled therein,bearings supporting said shaft, a lever carrying one of said bearings,means for raising and lowering said 1ever, a drum journaled in the frameand provided with a ratchet, a two-part clutch, one part carried by theshaft and the other part by the drum, a pawl engaging the ratchet on thedrum, a trip-rod connected to the pawl and adapted to be engaged by themovable lever carrying the shaft-bearing,substantially as described.

8. The combination of a frame, a vertical shaft and means for endwisesupporting and adjusting said shaft, bearings 61 d supporting saidshaft, the lower bearing cl having an upward tubular extension, a drumhaving a hollow hub, said hub having upper and lower tubular extensionsor trunnions, the upper one embracing the shaft and the lower oneembracing the upward tubular extension on the lower shaft-bearing, abearing 70 attached to the frame and embracing the upper trunnion, and atwo-part clutch inclosed within the hub, one part being carried by thehub and the other part by the shaft, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

ULYSSES S. JAMES.

lVitnesses:

WVALTER H. LITTLE, RALPH T. BICKELL.

